Saturday

December 20, 2014

December 20, 2014

Posted by **Demi** on Sunday, March 28, 2010 at 8:12pm.

Here is the question/problem:

Because of the pressure inside a popcorn kernel, water does not vaporize at 100 degrees Celsius. Instead, it stays liquid until its temperature is about 175 degrees Celsius, at which point the kernel ruptures and the superheated water turns into steam. How much energy is needed to pop 95.0 grams of corn if 14 percent of a kernel's mass consists of water? Assume that the latent heat of vaporization for water at 175 degrees Celsius is 0.90 times its value at 100 degrees Celsius and that the kernels have an initial temperature of 175 degrees Celsius.

- Physics -
**bobpursley**, Sunday, March 28, 2010 at 8:15pmheat=mass*Lv where mass is 95*.14 grams

**Answer this Question**

**Related Questions**

Physics - Because of the pressure inside a popcorn kernel, water does not ...

physics - Because of the pressure inside a popcorn kernel, water does not ...

Physics - I appreciate any help! Thank you!! How much energy must be added to a ...

chemistry 150 - given the mass of a popcorn kernel. told the % water in kernel, ...

Physics 20 - 1. How much heat energy is required to change 500 grams of water at...

Physics - Please Help! I am having difficulties grasping these concepts. Explain...

Physics - the pressure is one atmosphere and determine the heat in joules ...

Chemistry - 30 grams of a metal at 100 degrees Celsius is placed in a ...

Chemistry - 30 grams of a metal at 100 degrees Celsius is placed in a ...

Chemistry - A sample of benzoic acid contaminated with NaCl and sand is to be ...