Sunday

April 20, 2014

April 20, 2014

Posted by **Sarah** on Monday, January 23, 2012 at 11:46pm.

___________ s

____________ photons

- Chemistry -
**DrBob222**, Tuesday, January 24, 2012 at 12:18amHow many J needed to raise T from 25C to 100 C? That is mass H2O x specific heat H2O x delta T = about 16,000 J but you need to get a more accurate number.

How much energy is available for a photon?

That is E = hc/wavelength =

6.626E-34*3E8/0.0975m = about 2E-24 J/photon.

2E-24 J/photon x # photons = 16,000

Solve for # photons.

633 J/s x # seconds = 16,000

Solve for # seconds.

Check my work. It's getting late.

**Related Questions**

chemistry - A certain microwave oven delivers 800. watts (J/s) of power to a ...

Chemistry - A particular microwave oven delivers 800 watts. (A watt is a unit of...

CHEMISTRY - I don't even understand how this question works. How do I solve it? ...

chemistry - Your 1.1 cubic foot GE microwave oven generates 1100 watts of ...

Physics - a large container holding 340g of water, initially 14°C is placed in a...

physics.... - Suppose that the inside length of a microwave oven is 30 cm. If ...

chemistry - A microwave oven heats by radiating food with microwave radiation ...

chemistry - A microwave oven heats by radiating food with microwave radiation ...

College Physics II - A typical gamma ray emitted from a nucleus during ...

Physics - An ice cube is placed in a microwave oven. Suppose the oven delivers ...