An ice cube at 0 degrees C is dropped into a container with 0.5 kg of water at 20° C. The specific heat of water is 4186 J/kg° C. The latent heat of fusion for water is 33.5 × 10^4 J/kg. 1. If the ice cube completely melts and the water cools to 0° C, then what is the mass of the ice cube?

You have to samples of equal mass one of gold and one of copper that you heat up to 120ﾟC. Gold has a specific heat of 126 j/kgK and copper has a specific heat of 387 j/kgK. Which sample reaches the temperature first? why?

You heat up a piece of hot metal with an emissivity of 0.1 until it glows. If the temperature of the metal is 3000 K, and the surface area of the metal is 0.1 meters squared, how much heat energy per second is transferred by radiation from the metal? 0.000001701 Joules per second (or Watts) 30 Joules per second (or Watts) 459270 Joules per second (or Watts) 45927 Joules per second (or Watts) 810000000000 Joules per second (or Watts)

Newton's Law of Cooling The temperature, u, of a heated object at a given time t can be modeled by the equation u(t) = T+ (uo - T)et where k < 0 is a constant, T is constant ambient temperature, and up is the initial temperature of the heated object. Suppose that an object has been heated to 90 degrees celsius and is then allowed to cool in a room that is kept at a constant 45 degrees celsius. If the temperature of the object is 73 degrees celsius after 8 minutes, when will its temperature be 58 degrees celsius? minutes.

A 0.422 g food sample is used to raise the temperature of 14.656 g of water by 45.2 celsius. How many food Calories (kilocalories) of energy does the food contain per gram?

You happen to come across a piece of metal that has a density of p = 7.43 g/cm³ when the temperature is To = 45.0 °C. If the metal is cooled to a temperature of T = 0.00 °C, does the density change? No, because as the volume changes so does the mass. No, density does not depend on temperature. Yes, since the metal contracts and the mass is constant, the density will increase. Yes, the density will decrease since the volume changes. Calculate the density of the piece of metal at this temperature, p1. The coefficient of volume expansion for this piece of metal is ß = 8.43 x 10-s 1°°C.

A mass m of a metal with heat capacity CM at initial temperature T is added to the volume V of a liquid with density p and heat capacity c₁ at initial temperature T₁. What is the final temperature of the system?

Helium gas with a pressure of 0.180 atm and a volume of 3.20L at 41⁰ C is warmed until both the pressure and volume are doubled. What is the final temperature of the gas?

We turn on a heater that delivers 150 watts (150 J/s) to  1.9 kg of water in a lab experiment.  After 33 seconds, how much will the water temperature have increased?  Give your answer in degrees Celsius.     Hint: The specific heat of water is 4186 J/kg °C.

A 75.0 kg concrete block falls off a 7.5 m tall wall. If all the initial energy of the concrete block is absorbed by itself when it hits the ground. What is the change in temperature of the concrete block (specific heat of concrete is 880 J/kg K)?