8. Thermochemistry

What is the specific heat capacity of lead if it takes 98.0 J to raise the temperature of a 75.5 g block by 10.2 °C? Express your answer with the appropriate units.

A 90.0 g piece of metal, initially at 98.60 °C, is placed into 120.0 g of water initially at 24.30 °C. If the final temperature of the water is 34.00 °C, what is the specific heat capacity of the metal? (The specific heat of water is 4.184 J/g·°C).

A sample of aluminum metal absorbs 11.2 J of heat, causing its temperature to increase from 23.2 °C to 30.5 °C. Given that the specific heat capacity of aluminum is 0.90 J/g-K, what is the mass of the sample in grams?

Which of the following substances (with specific heat capacity provided) would show the smallest temperature change upon gaining 200.0 J of heat?

How much would the temperature of 309 g of ethanol increase if 25.3 kJ of heat were added to it? The specific heat of ethanol is 2.42 J/g°C.

A sample of water with a mass of 100.0 g and a density of 1.00 g/mL is heated from 25.0 °C to its boiling point (100.0 °C) and then completely vaporized. How much heat (in kJ) is required for this process? (Specific heat of water = 4.18 J/g·°C; enthalpy of vaporization = 40.7 kJ/mol)

How much heat is required to warm 2.80 kg of sand from 31.0 °C to 100.0 °C? The specific heat capacity of sand is 0.840 J/(g·°C). Express the heat in joules to three significant figures.

When heating a solution to boiling on a hot plate, you should start by:

How many joules (J) are required to raise the temperature of 1 gram of water by 1 °C?

Which of the following best describes the heat of combustion of ethane (C_2H_6)?

When calculating the heat of solution in a calorimeter, which of the following is assumed to be negligible?

Which of the following exchanges of energy has a positive sign for heat (relative to the system)?

Which statement best describes how water interacts with heat energy?

Given that the specific heat capacity of water is 4.18 J/g·°C, how many grams of water can be heated from 20.0 °C to 75.0 °C using 12,500.0 joules of energy?