Asystem performs 61 kj of work on its surroundings and releases 107 kj of heat. what is the change in internal energy of the system?

ΔU = - 168 KJ

Explanation:

∴ W = - 61 KJA system performs on its surroundings

∴ Q = - 107 KJA system release heat

⇒ ΔU = - 107 KJ - 61 KJ = - 168 KJ

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

2b2t

explanation:

2b2t