A reaction has the following rate law:      Rate = k[A][B]2 In experiment 1, the concentrations of A and B are both 0.10 mol L–1; in experiment 2, the concentrations are both 0.30 mol L–1. If the temperature stays constant, what is the value of the ratio, Rate(2)/Rate(1)?

Dinitrogen tetraoxide, N2O4, decomposes to nitrogen dioxide, NO2, in a first-order process. If k = 2.5 × 103 s–1 at –5°C and k = 3.5 × 104 s–1 at 25°C, what is the activation energy for the decomposition? 

Which of the following has the species with the lower ratio of charge to ionic volume listed             first?

The Henry’s Law constant (k) for carbon monoxide in water at 25°C is 9.71 × 10–4 mol/(L·atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm?

Consider the reaction:      2NH3(g) → N2(g) + 3H2(g) If the rate Δ[H2]/Δt is 0.030 mol L–1s–1, then Δ[NH3 ]/Δt is

Sulfuryl chloride, SO2Cl2(g), decomposes at high temperature to form SO2(g) and Cl2(g). The rate constant at a certain temperature is 4.68 × 10–5s–1. What is the order of the reaction?

Explain in terms of buoyant force how a fish is able to rise and sink in water. Contrast this to the way a submarine rises and sinks.

The planet Jupiter is about 300 times as massive as Earth, yet on its surface you would weigh only about 3 times as much. This is because

A projectile that is fired vertically at 5 km/s from the Earth’s surface will

More than one weld bead, or weld pass, is usually needed to complete a weld on thin metal.