pH of neutral water at room temperature is nearly

What is temperature coefficient of a reaction ? Why temperature coefficient for most of the reactions at room temperature is nearly two ?

For solutin of ethanol and water at room temperature the correct option is/are :

Ionic product of water at 310K is 2.7xx10^(-14) . What is the pH of neutral water at this temperature ?

Ionic product of water at 310 K is 2.7 X 10^(-14) . What is the pH of neutral water at this temperature ?