Correct

放热

/ fàng rè / 
Strokes

Definition

exothermic

Example

As a Verb

release heat

1
Zhíjiē
直接
  
/
jiànjiē
间接
fàng
放
rè
热

direct/indirect radiation

2
Fàng
放
rè
热
xiànxiàng
现象

emission of heat

3
Fàng
放
rèhuǒlú
热火炉

heat-generating stove; heater stove