Question

$5000\text{kcal}$ of energy is consumed by the primary consumer in a food chain. As per the $10\%$ energy flow rule, $x\text{kcal}$ of energy is consumed by the tertiary consumer. Coincidently, the body temperature of the tertiary consumer was also observed to be $x{}^{\circ }\text{C}$. What is its body temperature in kelvin?

• A. $223\text{K}$
• B. $227\text{K}$
• C. $323\text{K}$
• D. $773\text{K}$

Answer 1

The correct option is C $323\text{K}$

As per the $10\%$ energy flow rule,
Secondary consumer will receive $10\%$ energy received by the primary consumer. So, the secondary consumer received
$\frac{10}{100}\times 5000$ i.e; $500\text{kcal}$ of energy. Similarly the tertiary consumer received $50\text{kcal}$ of energy. So, value of $x$ is 50. Hence, the body temperature of the tertiary consumer is $50{}^{\circ }\text{C}$. And using the formula, $\text{K}={}^{\circ }\text{C}+273$
we get,
body temperature in kelvin as, $323\text{K}$.