The salt
is the least soluble salt at 50
.
Answer: Option 1
<u>Explanation:
</u>
As it is clear that
, a gas so the solubility of it decreases on increasing the temperature of water. Because gas molecule starts to evaporate on attaining heat with the increase of temperature thus leading to reduction in the solubility of them.
As most of the gas molecules get vaporised the solubility in water gradually decreases for this compound. It is also clear from the solubility graphs of the various salts.
Answer:
The value of R and the internal resistance of the battery are 10.6 ohm and 2.45 ohm
Explanation:
Given that,
Emf of battery = 15.0 V
Voltage = 12.2 V
Power = 14.0 W
(a). We need to calculate the value of R
Using formula of power



Where, R = resistance
P = power
V = voltage
Put the value into the formula


(b). We need to calculate the internal resistance of the battery
Firstly we calculate the current
Using formula of current

Put the value of P and V into the formula


We calculate the internal resistance
Using formula of emf


Put the value into the formula


Hence, The value of R and the internal resistance of the battery are 10.6 ohm and 2.45 ohm
Answer:
Positively charged particle
Explanation:
¹⁰₆C → ¹⁰₅B + e⁺ + ve
Since there is a decrease in the atomic number, there has been nuclear transmutation and a proton has be broken into a neutron and positron with the release of neutrino which has zero charge and very small mass. This is a beta plus decay with the release of Positively charged particle
Answer:
3m
Explanation:
If a girl is 5m away from a mirror, she needs to walk a further 3m to be 2m away from her image.
5m-3m = 2m