Physical Chemistry Answers

Define chemical thermodynamics and outline its significance.

The rate of a reaction at 25 °C is 2×+0^-3.Then the rate of reaction at 35°Cis approximately

The data below were determined for the reaction shown below. s2o82– + 3i – (aq) → 2so42– + i3–

What is the new volume of a 300L sample of CO2g when pressure doubles

if 2 moles of real gas a occupies 11.2 l volume at stpthen compressibility factor of gas a at stp is

Three of the primary components of air are carbon dioxide, nitrogen, and oxygen. In a sample containin a mixture of only these gases at exactly 1 atm, the partial pressures of carbon dioxide and nitrogen are given as

P

C

O

2

=

0.285

P

CO

2

​

​

=0.285

torr and

P

N

2

=

593.525

P

N

2

​

​

=593.525

torr. What is the partial pressure of oxygen?

Calculate the pH of the solution: A solution formed by mixing 20ml 0.1M acetic acid and 10ml 0.1 socium acetate.

★ Fill in the blanks with correct word(s).

1 The volume of the gas would become zero at _______ temperature.

2 At constant temperature when the volume of the gas decreases, the pressure ________.

3. A sample of helium gas occupies 6 mL at a temperature of 250 K. At _______K the gas expands to 9 mL.

4. The pressure of a gas mixture is equal to the ________ of the partial pressures of the constituent gases at a particular temperature.

5. The value of PV for 5.6 moles of a gas at 0°C is ________.

A study of the rate of formation of iodine by the reaction 2I(g) > I2(g) in the presence of argon. The following data was obtained... Determine

I) The rate law

Ii) Calculate the rate constant and give its units

What does ideal gas law predicts that the molar volume is equal to