Calculating Water Needed to Heat 1000 MW/J from 18°C to 30°C

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Homework Help Overview

The discussion revolves around calculating the amount of water needed to absorb a specific amount of energy, transitioning from an initial temperature of 18°C to a final temperature of 30°C. The subject area includes thermodynamics and the concept of specific heat capacity.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are exploring the relationship between energy, specific heat, and temperature change. Questions include the appropriate formula to use and clarifications on units such as MW/J and their meanings.

Discussion Status

Some participants have provided hints regarding the specific heat of water and the need for clarity on units. There is an ongoing exploration of definitions and the correct application of concepts, with no explicit consensus reached yet.

Contextual Notes

There is confusion regarding the units of measurement, specifically the distinction between power (Watts) and energy (Joules). Participants are also grappling with the definition of specific heat and its implications for the problem at hand.

twiztdlogik
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how much water would 1000 MW/J heat from 18 degrees to 30 degrees?

i am unsure of what formula [is there is one] to use...

so any help would be GREAT!

TIA:smile:
 
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Hint: What's the specific heat of water? (What kind of units are MW/J? Did you mean Joules?)
 
i have the specfic heat of water... and the MW/J was my way of saying mega watts or joules.

the specific heat i have is 4.184 J g–1 K–1

what i can't figure out is how to get the amount of water. and i am not sure of what sort of answer i am going to get, or if the answers i am getting from playing around are correct.

i think i am confusing myself...:rolleyes:
 
twiztdlogik said:
i have the specfic heat of water...
What's the definition of specific heat? Look it up!
and the MW/J was my way of saying mega watts or joules.
Those aren't the same thing, you know. :rolleyes: (Watts = power; Joules = energy.)
 

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