Answer:
heat produced by 150 watt bulb is 510 Btu
Step-by-step explanation:
Given data:
Power of bulb is 150 W
Duration for light is 20 hr
We know that 1 Watt = 3.4 Btu
hence using above conversion value we can calculate the power in Btu unit
so for
![150 W\ bulb = 150* 3.4 = 510 Btu](https://img.qammunity.org/2020/formulas/engineering/college/lovg5n7lrj8leknyfnebx6n5npvzvd4q8z.png)
therefore, 150 W bulb consist of 510 Btu power for 20 hr
output heat by 150 watt bulb is 510 Btu