Answer
Yes. After the assets of the partnership are exhausted, all partners — including an industrial partner who contributes only services — are liable pro rata with their separate property for the contracts entered into in the name and for the account of the partnership (Civil Code Article 1816). Partnership property is applied first, but the partners answer with their own property once that fund is insufficient.
This liability to outsiders is distinct from the sharing of losses among the partners themselves: an industrial partner is exempt from losses in the internal settlement between partners (Article 1797), even though he remains liable to third persons under Article 1816. Partners are also solidarily liable with the partnership for loss or injury caused by a partner acting within the ordinary course of the firm's business (Articles 1822 to 1824).