Question

In a zero order reaction for every ${10}^o$ rise of temperature, the rate is doubled. If the temperature is increased form ${10}^o$C to ${100}^o$C, the rate of reaction will become:

• A. $256$ times
• B. $512$ times
• C. $64$ times
• D. $128$ times

Answer 1

The correct option is B $512$ times

For rise in temperature, $n=1$

Therefore rate $=2^n=2^1=2$

When temperature is increased from ${10}^{\circ }C$ to ${100}^{\circ }C$ change in temperature $=100-10={90}^{\circ }C$ therefore $n=9$ therefore, rate $=2^9=512$ times.