Table of Contents

## What is the difference between a calorie and specific heat?

Calorie is a unit of heat in the CGS system. It is defined as the amount of heat required to raise the temperature of 1 g water by 1 oC. Specific heat capacity of a substance is defined as the heat required to rise the temperature of 1 g of the substance by 1.

## How do you convert specific heat to calories?

Specific Heat

- For a mass m = gm = kg.
- with specific heat c = cal/gm°C = joule/gm°C,
- initial temperature Ti = °C = K = °F.
- and final temperature Tf = °C = K = °F,
- Q = calories = kcal = x 10^ calories.
- Q = joules = x 10^ joules.

**Is specific heat in joules or calories?**

Because one degree on the Celsius scale is equal to one Kelvin, specific heats in the metric system can be reported in units of either cal/g-oC or cal/g-K. The units of specific heat in the SI system are J/g-K. Because there are 4.184 joules in a calorie, the specific heat of water is 4.184 J/g-K.

### What is MC in Q MC ∆ T?

Q = mc∆T. Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/kg∙K) ∆ is a symbol meaning “the change in”

### What is a joule calorie?

The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius. Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that one calorie is equal to approximately 4.2 joules.

**What is the specific heat capacity of water in calories?**

Water has a specific heat capacity of 4.186 J/g°C, meaning that it requires 4.186 J of energy (1 calorie) to heat a gram by one degree.

#### Are Kcals the same as cal?

The “calorie” we refer to in food is actually kilocalorie. One (1) kilocalorie is the same as one (1) Calorie (uppercase C). A kilocalorie is the amount of heat required to raise the temperature of one kilogram of water one degree Celsius.

#### What is relation between joule and calorie?

**How do you find Q Cal?**

The heat gained by the calorimeter, q cal, is determined from the formula, qcal = Ccal×Δt, where Δt is the change in temperature undergone by the mixture.