400g of cold water is added to 200g of water at 70°C. If they are properly mixed and the temperature of the mixture is 30°C. calculate the initial temperature of the cold water. (Neglect the heat absorbed by the container)

Ugwu21Desmond01

3 years ago

Heat gain by the cold water = Heat loss by the hot water

400(30 - x) = 200(70 - 30)

12,000 - 400x = 8,000

400x = 4,000

x = 10

rachael021205

5 years ago

Explain :(

A13

2 years ago

Heat gain by cold water = Heat loss by hot water
400x(30 - x) =200(70 -30)
12000 - 400x = 8000
400x = 4000
x =10

Namzy101

4 months ago

I got 50 degree

Chiamakaokpe

3 years ago

explanation

Geeblacks

2 years ago

but the temperature in the question is 300⁰C

Adewuyi2009

7 months ago

I can get

mimigozie

3 years ago

please can i get an explanation?

wanker

6 days ago

Maybe its just me But the answer isn't there.

Johntee2345

1 year ago

The temperature was 300degree celcius not 30degree celcius the answer is wrong. 😒