A metal initially at 450.◦C and mass 2.00 g is dropped into a liquid with specific heat capacity4.00 Jg−1◦C−1, mass 10.0 g and initial temperature 40.0◦C. The final temperature of the liquid is50.0◦C. What is the specific heat capacity of the metal. Express your answer in Jg−1◦C−1. A. 0.250 Jg−1◦C−1 B. 0.350 Jg−1◦C−1 C. 0.500 Jg−1◦C−1 D. 3.50 Jg−1◦C−1 E. 4.50 Jg−1◦C−1

20. In a chemical reaction, the amount of energy gained by the surroundings must equal the amount of energy released by the reaction(system). A. True B. False ount of heat needed to increase the temperature of one mole of a

A gas expands and its pressure and volume are recorded, as shown above. What is the work done by the gas? (see picture attached)    A. 130 J B. -13,172 J C. 13,172 J D. -130 J

Material A and material B was exposed to the same change in temperature- but the heat involved with A is 3 times greater than B. If mass of A is 1 kg and mass of B is 10 kg. how do you describe their specific heat ? * O Specific heat of A is 10 times lesser compared to B O Specific heat of A is 10 times greater compared to B O Specific heat of A is 20 times greater compared to B Specific heat of A is 30 times greater compared to B

Calculate the quantity of heat required to increase the temperature of 1.0 kg brass statue standing on 500 gr granit block from 20 oC to 100 oC. Both brass statue and the granit block are heated. Specific heat of brass cbrass= 0.37 J / gr oC  Specific heat of granite cgranit = 0.80 J / gr oC a. 10 kJ  b. 30 kJ                      c. 86 kJ d. 62 kJ

One mole of an ideal gas undergoes the pressure–volume changes shown in following diagram. Starting at state A, it expands to state B and then expands again to state C. From state C, it is compressed back to A. a) How much work is done in the overall process? b) Sketch and label the corresponding temperature–volume diagram.

Q1) What is the molar heat of combustion of methanol CH;OH ( in kJ/mol), if the combustion of 1.0 g of methanol causes a temperature rise of 3.68 °C in a bomb calorimeter that has a heat capacity of 6.43 J/°C? A) 55.9 В) 757 C) 923 D) 18.3 E) 23.6

A sample of 175°C copper is placed into a beaker with 100 grams of 25°C water. Which sample of copper will heat the water to the lowest final temperature? The specific heat of copper is 0.385 J-g-1.°C-1. The specific heat of water is 4.184 J·g-1.°C-1. A. 5.0 g Cu B. 2.0 g Cu C. 0.5 g Cu D. 1.0 g Cu

A 1.69 gram sample is heated to an initial temperature of 75 oC. The sample is then placed in a calorimeter containing 542 grams of water starting at 20 oC. If the final temperature is 27 oC what is the specific heat of the sample?

A 314.0-gram piece of this metal at 80.00°C is added to 120.0g of water at 20.00°C. The final temperature of the water-metal mixture is 40.00°C. What is the specific heat of the metal in J/(g*°C)? ОА. 0.79 о в. 0.52 О С. 0.32 O D. 1.91 AD