Chem 1309 CHAP 6 & 7 Review

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy (KE) = 0.5 * m * v², where m is mass in kg and v is velocity in m/s.

Front

How do you calculate the final temperature of a substance when energy is added?

Back

Use the formula: Q = mcΔT, where Q is heat added, m is mass, c is specific heat capacity, and ΔT is the change in temperature.

Front

What is the relationship between temperature and volume of a gas at constant pressure?

Back

According to Charles's Law, V1/T1 = V2/T2, where V is volume and T is temperature in Kelvin.

Front

How do you calculate the density of a gas?

Back

Density (d) = mass (m) / volume (V). For gases, use the mass in grams and volume in liters.

Front

What is the ideal gas law equation?

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 in Kelvin.

Front

What is the conversion factor from mmHg to atm?

Back

1 atm = 760 mmHg.

Front

What happens to the pressure of a gas when its volume decreases at constant temperature?

Back

According to Boyle's Law, P1V1 = P2V2, pressure increases as volume decreases.

Front

What is specific heat capacity?

Back

Specific heat capacity (c) is the amount of heat required to raise the temperature of 1 gram of a substance by 1 °C.

Front

How do you convert Celsius to Kelvin?

Back

K = °C + 273.15.

Front

What is the significance of the ideal gas constant (R)?

Back

R is a proportionality constant in the ideal gas law, with a value of 0.0821 L·atm/(K·mol) or 8.314 J/(K·mol).