Perform the following calculations. Values which may be useful: Specific heat of
ID: 845043 • Letter: P
Question
Perform the following calculations. Values which may be useful: Specific heat of water 1.00 cal/ gram 'C; Heat of fusion of water: 80 cal/gram; Heat of vaporization of water: 540 cal/ gram; Specific heat of nitrogen gas: 0.25 cal/ gram. 'C Specific heat of nickel 0.106 cal/ gram . 'C: Heat of fusion of nickel: 71.3 cal/gram
1. 350 calories of heat is added to a sample of nitrogen gas, and the temperature is increased by 89 *C. What is the mass of the sample of nitrogen gas?
2. Nickel metal melts at 1455*C. How much heat energy is required to change 130 grams of solid nickel into liquid nickel at that temperature?
3. Gasoline in the amount of 250 grams absorbs 600 calories of heat, and the temperature increases from 30.0 *C to 35.0*C. What is the specific heat of this sample of gasoline?
4. Heat energy is added to a 325 g block of nickel, and the temperature increases from 21*C to 53*C. If the same amount of heat was added to the same mass of water at te same temperature, what would the water's final temperature be?
Explanation / Answer
use the equation
Q = mass x specifi heat x delta T
350 = mass x specific heat x 89