Calculate the difference in temperature between the water at the top and bottom of a 25 m high waterfall assuming that 15% of the energy of fall is spent in heating the water (J= 4.18 J/Cal).

Q: On the moon the surface temperature ranges from 356 K during the day to 1.06 x 102 K at night.…

A: a) The conversion of temperature from Kelvin to degree Celsius is T°C=TK-273=356-273=83°C

Q: Level curves (isothermals) are shown for the typical water temperature (in °C) in Long Lake…

A: Given the isotherms, We have to determine the temperature in the lake on October 7 (day 280) at a…

Q: An ordinary drinking glass is filled to the brim with water (268.4 mL) at 2 deg C and place on the…

A: Given: The volume of the water is 268.4 mL. The initial temperature is 2°C. The final temperature is…

Q: A 1.5-m-long glass tube that is closed at one end is weighted and lowered to the bottom of a…

A: Ideal gas equation is,

Q: Students on a spring break picnic bring a cooler that contains 5.3 kg of ice at 0.0°C. The cooler…

A:

Q: the mine transfers enough energy by heat to the mine's cooling systems to melt 363147 kg of ice at…

A: Given : Mass of ice (m) = 363147 kg Energy increased by 9.3 % Latent Heat of fusion of Ice (L) =…

Q: 97. As we drill down into the rocks of Earth's crust, the temperature typically increases by 3.0°C…

A:

Q: A simple solar energy heater is a glass-topped box containing rocks. Sunlight heats the rocks during…

A: Total mass of rocks, m = 7.5 * 104 g Specific heat, s = 0.49 J/go C Change in temperature, ∆T = 43 -…

Q: A car weighing 1.30×10^3 kg reduces its speed with strong braking from 130 km/h to 90.0 km/h. By how…

A: SOlution: Given that M = 1.3 x103  kg V1 = 130 km/h v2 = 90 km/h m = 6 kg C = 450 J/kgK

Q: Question: Mars is about half the size of Earth by diameter and has a much thinner atmosphere, with…

A: The ideal gas law is the equation of a state of an ideal gas. It is given as:PV=nRTwhereP is…

Q: A 5.157 kg loose bag of soil falls from unknown height at a construction site. What is height in m…

A:

Q: *73. Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such…

A: The expression for the heat required to melt the iceberg is, Q=mLf=ρVLf   Substitute, Q=917…

Q: Two 50-g ice cubes are placed into 0.2kg of water in a Styrofoam cup. The water is initially at a…

A: Given: The mass (m) of an ice cube is 50 g. The mass (M) of the water is 0.2 Kg. The initial…

Q: The temperature within the Earth’s crust increases about 1.0 C° for each 30 m of depth. The thermal…

A: The rate of heat conducted is given by the formula  Qt=kAdTdxChange in temperature per 1m depth…

Q: The rizal monument stands at exactly 13 meters tall when it is 30°C at dawn. Due to the intense heat…

A:

Q: You are thinking ahead to spring when one of your friends is having an outdoor wedding. Your plan is…

A: Given: M = mass of lemonade = 5.6 x103 kg = 5600 gm S = specific heat capacity of water = 1.0…

Q: A body is removed from a confined space where the temperature is 70°C and is taken outside, where…

A:

Q: The Gulf Stream flows at a rate of 2.4×1012 m3 /day. Its waters have a temperature of 23 C. Make a…

A:

Q: A pure aluminum plate is part of a heat shield for a manufacturing process. The aluminum plate has a…

A: Step 1:Step 2: Step 3: Step 4:

Q: Estimate the rate of change of temperature of the ocean in degrees/century associated with 4 W/m2 of…

A: This is a thermoynamics quetion. In order to raise the temperature of water heat is supplied which…

Q: The height of the Washington Monument is measured to be 170 m on a day when the temperature is…

A: Length of monument at 39 degree celsius (L) = 170 m New temperature = -16.5 degree celsius

Q: The average thermal conductivity of the walls (including windows) and roof of a house in the figure…

A: Given: The thermal conductivity of walls is k=4.8×10-4 kW/m·∘C. The thickness of the walls is…

Q: A steel railroad track has a length of 34 m when the temperature is 9°C. What is the increase in the…

A:

Q: A simple solar energy heater is a glass-topped box containing rocks. Sunlight heats the rocks during…

A: Given:-  A simple solar energy heater is a glass-topped box containing rocks.  Sunlight heats the…

Q: At very low temperatures the molar heat capacity of rock salt varies with temperature according to…

A:

Q: To keep yourself warm in the winter, you heat a solid metal ball and place it on a stand in the…

A: Write the expression for the radiated power. H=σεA(Tf4−Ti4)H=σε(4πR2)(Tf4−Ti4) Here, σ is the…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.