Question

a certain freezing process requires that room temperature be lowered from 32 degree Celsius at the rate of 5 degree Celsius every hour what will be the room temperature it hours after freezing process begins please explain step by step. fast please

class =7

answer in book = -8°C​

Answer 1

Answer:

A certain freezing process requires that room temperature be lowered from 32 degree Celsius at the rate of 5 degree Celsius every hour what will be the room temperature it hours after freezing process begins please explain step by step. ... answer in book = -8°C.

Answer 2

Answer:

Given that

Let us assume that the lowered temperature as negative,

Initial temperature = 40oC

Change in temperature per hour = -5oC

Change in temperature after 10 hours = (-5) × 10 = -50oC

∴The final room temperature after 10 hours of freezing process = 40oC + (-50oC)

= -10oC

The room temperature 10 hours after the process begins= -10oC

Step-by-step explanation:

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