GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the formula to calculate heat energy required to raise the temperature of any substance?
A
Q=mc∆t
B
Q=mc
C
Q= 1/2mv
D
m=QC
Explanation: 

Detailed explanation-1: -The amount of heat gained or lost by a sample (q) can be calculated using the equation q = mcT, where m is the mass of the sample, c is the specific heat, and T is the temperature change.

Detailed explanation-2: -The specific heat capacity of a substance is the quantity of heat needed to raise the temperature of a unit quantity of the substance by one degree. Calling the amount of heat added Q, which will cause a change in temperature ∆T to a weight of substance W, at a specific heat of material Cp, then Q = w x Cp x ∆T.

Detailed explanation-3: -Q = m•C•T where Q is the quantity of heat transferred to or from the object, m is the mass of the object, C is the specific heat capacity of the material the object is composed of, and T is the resulting temperature change of the object.

Detailed explanation-4: -The heat transfer formula can be expressed as Q = m × c × T, where Q refers to the heat transferred, m is mass, c is the specific heat and T is the difference in temperature. Heat transfer is the exchange of heat from an object at a high temperature to an object at a low-temperature body.

There is 1 question to complete.