When energy is absorbed, the reaction is described as ________.

• endothermic

• exothermic

• zero order

• first-order

Tags

NGSS.HS-PS1-4

When energy is released, the reaction is described as ________.

• endothermic

• exothermic

• zero order

• first-order

Tags

NGSS.HS-PS1-4

A type of system which allows exchange of energy but not matter with its surroundings

• open

• closed

• isolated

• universal

A type of system which do not allow exchange of energy and matter with its surroundings

• open

• closed

• isolated

• universal

Tags

NGSS.HS-PS3-4

State the First law of Thermodynamics

Tags

NGSS.HS-PS3-1

It is defined as the degree of coldness or hotness of an object

• heat

• internal energy

• enthalpy

• temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

It is defined as the energy contained within a system.

• heat

• internal energy

• enthalpy

• temperature

Tags

NGSS.HS-PS3-4

The value of change of enthalpy is ________ if the heat flow from the system to the surroundings

• positive

• negative

• unchanged

Tags

NGSS.HS-PS3-4

It is the change in the concentration of the reactants and products per unit time.

Tags

NGSS.HS-PS1-5

It is the factor affecting rate of reaction, wherein there is higher chances of collision because of increased amount of kinetic energy

Tags

NGSS.HS-PS1-5