<span>Convection means the movement happens inside a fluid
by the cause of too much heat and lesser density to rise, and also the colder
cause denser materials to sink.
Thus, Solid cannot undergo convection because the molecules inside the solid
are closer and can hardly move unlike liquid.
So, when the temperature got hotter or colder, the molecules on solid will only
vibrate and not convert.
Therefore, this concludes that the solid do not undergo convection rather
conduction of heat.</span>
The average kinetic energy of an atom in helium gas at temperature T is given by,
K.E=
here, K is botzmann constant =1.38×10⁻²³ m² kg s⁻² K⁻¹
Given, K.E= 6.21×10⁻²¹ J
Substituting the values,
T= 300 K
Therefore, at temperature 300 K the average kinetic energy of the atom in helium gas is 6.21×10⁻²¹ J.
Answer:
2 × 10⁵
Explanation:
The total mass of the drug, ibuprofen = 10 kg
Kilograms and grams are related as:
1 kg = 1000 g
Also,
Grams and milligrams are related as:
1 g = 1000 mg
So,
1 kg = 10⁶ g
Mass of the drug, ibuprofen = 10 × 10⁶ mg = 10⁷ mg
Given, mass of tablet = 50 mg
So, number of tablets = total mass / Mass of 1 tablet = 10⁷ mg / 50 mg = 2 × 10⁵
<u>Number of 50 mg tablets = 2 × 10⁵</u>
I already said it but its reactivity
