[单选题]
An immersion heater of constant power ou
izxf. v d8a -jt(+qz8btput is used to supply ther
u,(b0t)d6zx pr s:jnq / rkec2mal energy to a cup of w
jq)stz(b0 k6 pcxun2dr,re/: ater at 373 K. The heater is turned on at time t=0. Which graph shows a possible variation of temperature T of the water, with time t?
![](data/attachment/exam/2401/01/2401010853292642.jpg)
A.
B.
C.
D.
参考答案:
A
本题详细解析:
Explanation:
373 K is the boiling point of water. Temperature does not change until all water is boiled. B and C show temperature change at t=0. D is not compatible with the question.
You might have seen graphs that resemble options B and D in this context, they are there to distract you.