How long does it take a 2.50-W heater to boil away 400 g of liquid helium at

Question:

How long does it take a 2.50-W heater to boil away 400 g of liquid helium at the temperature of its boiling point (4.2 K)? For helium, Lυ = 5.0 cal/g.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: