Physical Chemistry Answers

Dying hair with color polar or non polar?

A person, living in Canada in the winter, pumps their car tires in the morning with a pressure of 35 psi. The temperature in the morning is 20°C. By the evening, the temperature has dropped to 0°C and the tire pressure monitoring system in the car starts indicating low pressure with a warning light. What pressure will the tires have in the evening that made the warning light from the pressure monitoring system turn on?

Derive the equation of straight line in case of Arrhenius equation.

Given the first order reaction is completed 90% in 30 mins at 298 K. Calculate the
rate constant.

Given the rate of the third order reaction: A+B+C→P
If the initial rate is 0.05 Ms-1
and the concentrations are as follows: [A] = 0.05 M,
[B] = 0.01M, and [C] = 0.25M. What is the third order rate constant?

In the first-order decomposition of dinitrogen pentoxide at 335 K,
N2O5(g) → 2 NO2(g) + ½ O2(g)
If we start with a 2.50g sample of N2O5 at 335 K and have 1.50g remaining after
109s, then(a) What is the value of the rate constant k? (b) What is the half-life of
the reaction? (c) What mass of N2O5 will remain after 5.0 min?

For the reaction, A → products, a graph of [A] versus time is a curve. What can
be concluded about the order of this reaction?

In the reaction H2O2(aq) → H2O(l) + ½ O2(g), the initial concentration of H2O2 is
0.2546 M, and the initial rate of reaction is 9.32×10–4 M s
–1
. What will be [H2O2]
at t = 35 s?

What would the rate constant of the reaction be given the following set of
experiments?
A + B → C + D
Experiment [A] (M) [B] (M) Initial Rate (M/s)
1 0.040 0.040 2.2x10-4
2 0.040 0.080 4.4x10-4
3 0.080 0.080 8.8 x 10
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