Science And Tech

[supercrafter]

Hi, can anyone help please q water has a specific heat capacity of 4200j/kg/c how much energy is supplied to a mass of 4.5kg of water when heated from 20-65c and

Q what is the input power of a ps4 and xbox1 which is more efficient

Thanking you in advance Supercrafter. X

[bhg481]

Rather than do your homework for you, what do you think the answer is?

If you make an attempt we'll tell you whether you're right or wrong and why. That way you'll learn.

[Buenchico]

Your figure quotes 4200 joules per kilogramme so (ignoring the 'per degree Celsius' bit for the moment) that's 4200 x 4.5j = 18900 joules.

However that's the amount of energy required to heat the water by just one degree but you need to heat it by 45 degrees:
18900 x 45 = 850500 joules = 850.5Kj

This gives you the power consumption figures you're seeking:
http://www.extremetech.com/wp-content/uploads/2014/05/Console-Table.png

[supercrafter]

Thank you buenchico for you prompt reply it's knowing where to look for information even when I try google. Super crafter x