Chem 1309 CHAP 6 & 7 Review

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy (KE) = 0.5 * mass (m) * velocity (v)^2

Front

How do you calculate the energy required to change the temperature of a substance?

Back

Energy (q) = mass (m) * specific heat (c) * change in temperature (ΔT)

Front

What is the specific heat capacity of water?

Back

4.18 J/g·°C

Front

How do you determine the density of a gas?

Back

Density (d) = mass (m) / volume (V)

Front

What is the relationship between heat added and temperature change in a substance?

Back

The heat added to a substance is directly proportional to the temperature change, depending on the mass and specific heat capacity.

Front

What is the principle of conservation of energy in thermal systems?

Back

In a closed system, the total energy remains constant; energy lost by one part of the system is gained by another.

Front

How do you calculate the final temperature of a mixture of substances?

Back

Use the formula: (m1*c1*(T_final - T_initial1) + m2*c2*(T_final - T_initial2) = 0) to find T_final.

Front

What is the significance of specific heat capacity in thermal processes?

Back

Specific heat capacity indicates how much energy is required to raise the temperature of a unit mass of a substance by one degree Celsius.

Front

What is the formula for calculating the heat transfer in a calorimetry experiment?

Back

q = m * c * ΔT, where q is heat transfer, m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What is the ideal gas law?

Back

PV = nRT, where P is pressure, V is volume, n is number of moles, R is the ideal gas constant, and T is temperature.