A sample of a gas has a volume of 1.5L at 150K. If the gas is heated to 235K at constant pressure, what will its final volume be

2.35 L

Explanation:

From Charles Law

Applying,

V/T = V'/T' Equation 1

Where V = Initial volume of the gas, V' = Final volume of the gas, T = Initial Temperature of the gas, T' = Final temperature of the gas.

Make V' the subject of the equation

V' = VT'/T Equation 2

From the question,

Given: V = 1.5 L, T = 150 K, T' = 235 K,

Substitute these values into equation 2

V' = (1.5×235)/150

V' = 2.35 L

Hence the final volume of the gas is 2.35 L

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.