Physics, 27.11.2019 03:31, williedenmark42

The volume of a given quantity of a gas must increase if: the temperature and pressure increase the temperature and pressure decrease the temperature increases and the pressure decreases the temperature decreases and the pressure increases

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answered: yukichaniscool8

the temperature increases and the pressure decreases

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

$P\propto \frac{1}{V}$ (At constant temperature and number of moles)

Thus as pressure and volume are inversely related, as pressure decrease, the volume increase.

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

$V\propto T$ (At constant pressure and number of moles)

Thus as temperature and volume are directly related, as temperature increase, the volume increase.

answered: Guest

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

answered: Guest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.